The Convert Harmful Algal Blooms to Fuel Act would establish a federal program to test technologies that remove harmful algal blooms from Florida waterways and convert the harvested algae into biofuel. The program would focus on three specific areas: the Caloosahatchee River watershed, the St. Lucie River and estuary basin, and the Lake Okeechobee watershed. The bill requires the U.S. Army Corps of Engineers to select project locations within 90 days of enactment and authorizes $25 million in spending for these efforts. The program would involve coordination between federal agencies including the Energy Department and Environmental Protection Agency, as well as state and local governments and research institutions. Within two years, the Corps must report to Congress on the project results, including whether the technology is feasible and what water quality improvements were achieved.